O.K. ... now... calm down ... take it easy ... pray for 1080p-60fps ... 720p-120fps ... I mean ... that's small compensation for not including (and never probably will) 4K in these beautiful piece of photo-machinery.

C'mon Canon ... let us use all the power from the heart of 1Dx ... from all 3 processors ... give more "juice" to our expensive toys... PLEASE !

Probably improves the camera and gives the owners a genuine advantage by removing all of the locked out 1DC code so a quick hack won't allow for the upsetting possibility that it could turn into a 1DC.

I got mine today from Canon Australia being serviced with the updated v1.2.1 firmware. I still have the CPS loan 1dx with 1.1.1 on it. I spent some time going through the menu items and it looks like no new menu items have been added.

Why can't people use Live View? 1Dx has the best AF system in the game, do people really want to compromise that over not wanting to use LV?

If the camera is on a tripod, Live View is definitely preferred. But usually, when I'm manually focusing it's with a fast prime like the 85mm f/1.2L II. That combo is pretty heavy - not easy to hold it away from one's body to manually focus in Live View then take a shot, not to mention that such a posture results in increased susceptibility to camera shake. Manually focusing through the VF allows a 3rd point of contact for better camera support, but it's not optimal for MF since the stock screen doesn't show the true DoF. Thus, the desire for Eg-S support with proper metering.

Why can't people use Live View? 1Dx has the best AF system in the game, do people really want to compromise that over not wanting to use LV?

Perhaps b/c some of us dont use AF that much?

90+% of my shots are handheld/walk around with zeiss lenses - live view isnt that useful unless I was to get a zacuto or something similar. The camera is big enough as it is for street/casual photography without having to add one of those on

My 1Dx is due back from Canon (England) tomorrow, went in to get the sensor cleaned as a result of realising I had the dirt issue showing up at F16 and above. They had it for around 24 hours this week so I'll double check it and post if it has been changed to 1.2.1. Doesn't sound like a mega upgrade anyway, I tried to check the Canon UK website to see if its available to download anyway but I strangely cant get the site to load.

Oh yes, please, EG-S support!! and for ME it has nothing to do with MF or liveview focusing manual primes, although I might consider buying back the Zeiss 28mm f2 (faaantastically fun lens). It just has everything to do with being able to CLEARLY see where my 1.2 dof is put and when tracking to see when I need to push or wait. For composition it's absolutely crucial and although I have a feel for the dof, there are very small changes that could lift an image IF I could see. Holding the camera out from the eye in LV? No thanks...